Department of Anaesthesia and Intensive Care Medicine, College of Medicine, King Saud University, Riyadh, Saudi Arabia.
Anaesthesia. 2010 Aug;65(8):836-40. doi: 10.1111/j.1365-2044.2010.06443.x. Epub 2010 Jun 22.
This prospective, observational volunteer study aimed to describe the appearance of the great auricular nerve using ultrasound and its blockade under ultrasound guidance. An in-plane needle guidance technique was used for blockade of the great auricular nerve with 0.1 ml mepivacaine 1%. Sensory block was evaluated by pinprick testing in comparison with the contralateral area propriae. The great auricular nerve was successfully seen in all volunteers and the tail of the helix, antitragus, lobula and mandibular angle were blocked in all cases whereas the antihelix and concha were never blocked. Ultrasound imaging of the great auricular nerve can be reliably achieved and successful blockade with minimal volumes of local anaesthetic is another example of the benefits of ultrasound-guided peripheral nerve blocks.
本前瞻性、观察性志愿者研究旨在使用超声描述耳大神经的外观，并在超声引导下进行神经阻滞。使用平面内针引导技术，用 0.1ml 1%甲哌卡因进行耳大神经阻滞。通过与对侧固有区的针刺试验评估感觉阻滞。所有志愿者均成功观察到耳大神经，所有病例均阻滞了耳轮尾、对耳轮、耳垂和下颌角，而对耳轮和耳甲从未阻滞过。耳大神经的超声成像可以可靠地实现，用最小体积的局部麻醉剂进行成功阻滞是超声引导外周神经阻滞的另一个好处的例证。
